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According to the Uniform Guidelines,test Validation Is Essential Only When

question 108

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According to the Uniform Guidelines,test validation is essential only when selection devices produce ________.


Definitions:

Oxidation Number

The oxidation number is a value assigned to an element in a chemical compound that represents the number of electrons lost or gained by an atom of that element in the compound.

Oxygen

A chemical element with the symbol O, essential for most forms of life and known for its role in combustion and respiration.

MgO

Magnesium oxide, a white hygroscopic solid mineral that is used as a refractory material, in medication, and as a magnesium source in animal feeds.

Oxidation Number

A concept in chemistry that represents the degree of oxidation of an atom in a chemical compound, indicating the number of electrons lost or gained by an atom.

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